Vivo Y21L is a very littel features phone.Dont buy this phone at this range.
Ram: Vivo Y21L has 1gb ram which is not better for run many apps add games at this prize.Many other brands are prefers atleast 2Gb ram at this prise.
Processor: Vivo Y21L has 1.2Ghz quad core processor whis is not expected at this high prise.You can not do smooth multi tasking.
Battery: Battery is only 2000mah which is not better for all day long use.
High Graphics game: You can not play high graphys game like asphalt 8, GTA etc.
Display: Vivo Y21L has 4.5 inch 480×854pixel low rezulution display.
Camera: Vivo Y21L has no good camera quality it has 5MP primary camera and 2MP secondary camera.
Android version: Vivo Y21L runs on android Lolipop( 5.0) and it can not be updated to android Marshmellow( 6.0) or higher.
Network: Vivo Y21L supports 4G network.